R000226 BP1 Automation
11
v.0.1 03/21
5.3 Making a Subminiature D-37 Breakout Cable
The easiest way to do this the following:
1. Cut the RJ45 connector off one end of a regular Ethernet patch cable and strip the eight
wires.
2. Terminate the 8 wires to a DB37 male breakout adapter such as the
ANMBEST_MD241,242 with no soldering or crimping needed. (see
https://www.amazon.com/ANMBEST-Solderless-Terminal-Connector-
Breakout/dp/B085H8MQ35/ref=sr_1_1_sspa
The connections should be made as shown in Figure 5-2.
DB37 Pin
→
RJ45 Pin
RJ45 Color
13 1
32 2
14 3
33 4
15 5
34 6
16 7
35 8
Figure 5-2
Some IMB manufacturers, e.g. Dolby and GDC, provide a set of RJ45 to bare ends cables
in the box with the units, for use with the IMB’s GPIO ports. If you use one of these and
connect the unterminated end to a DB37 breakout adapter, keep in mind that the color
coding on these cables might not follow the regular T-568A color coding pattern
(illustrated above). You may need to use a multimeter to figure out which pin links to
which color.
